2129224 has 8 divisors (see below), whose sum is σ = 3992310. Its totient is φ = 1064608.

The previous prime is 2129221. The next prime is 2129227. The reversal of 2129224 is 4229212.

It is an interprime number because it is at equal distance from previous prime (2129221) and next prime (2129227).

It can be written as a sum of positive squares in only one way, i.e., 1664100 + 465124 = 1290^2 + 682^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 2129195 and 2129204.

It is not an unprimeable number, because it can be changed into a prime (2129221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133069 + ... + 133084.

2^2129224 is an apocalyptic number.

It is an amenable number.

2129224 is a deficient number, since it is larger than the sum of its proper divisors (1863086).

2129224 is a wasteful number, since it uses less digits than its factorization.

2129224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266159 (or 266155 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 2129224 is about 1459.1860744950. The cubic root of 2129224 is about 128.6492081991.

It can be divided in two parts, 21292 and 24, that added together give a square (21316 = 146²).

The spelling of 2129224 in words is "two million, one hundred twenty-nine thousand, two hundred twenty-four".